https://issues.dlang.org/show_bug.cgi?id=20355
--- Comment #3 from Dlang Bot <[email protected]> --- dlang/druntime pull request #2872 "Merge remote-tracking branch 'upstream/stable' into merge_stable" was merged into master: - 0ff7cc2f4874f6aac3b0becd93390bafc75bc5e9 by MoonlightSentinel: Fix Issue 20355 - undefined identifier U in core.atomic https://github.com/dlang/druntime/pull/2872 --
